Patents by Inventor Darrell Fongson

Darrell Fongson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for information exchange and synchronization using DTMF over telephone communication channels
    Patent number: 9106767
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 11, 2015
    Assignee: Mist Silicon Limited Liability Company
    Inventors: Srivatsan Kasturi, G. Alagiri, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson
  • Systems and Methods for Information Exchange and Synchronization Using DTMF Over Telephone Communication Channels
    Publication number: 20120142333
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 7, 2012
    Inventors: Srivatsan KASTURI, G. Alagiri, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson
  • Systems and methods for information exchange and synchronization using DTMF over telephone communication channels
    Patent number: 8098801
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: January 17, 2012
    Assignee: Vertical Communications Acquisition Corp.
    Inventors: Srivatsan Kasturi, G. Alagiri, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson
  • Systems and methods for information exchange and synchronization using DTMF over telephone communication channels
    Publication number: 20070121830
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Application
    Filed: August 7, 2006
    Publication date: May 31, 2007
    Inventors: Srivatsan Kasturi, G. Alagiri, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson
  • Systems and methods for information exchange and synchronization using DTMF over telephone communication channels
    Patent number: 7088804
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: August 8, 2006
    Assignee: Comdial Corporation
    Inventors: Srivatsan Kasturi, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson
  • Systems and methods for information exchange and synchronization using DTMF over telephone communication channels
    Patent number: 6771751
    Abstract: Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: August 3, 2004
    Assignee: Comdial Corporation
    Inventors: Srivatsan Kasturi, G. Alagiri, Vinod Nagarajan, Rajah Kalipatnapu, Darrell Fongson